Antonino was waiting for us when we arrived at the apartment, and was friendly and helpful. The apartment was spacious, but a bit tired. However, it had everything we needed, including a functional kitchen and associated accessories. There was an airconditioning unit, but no heating that we could locate, although we didn't really require it, nor did we ask Antonino about it.
The really great aspect of the apartment was its location. It's in a nice, relatively quite and safe area, close to many shops, cafes and restaurants, and within easy walking distance of all the key sites, including the Vatican on the other side of the river. The location certainly helped make our time in Rome easier, and more relaxing than it could otherwise have been.